Fireworks sparked and rippled nearby behind crumbled walls and strewn-about debris where three of her children had been working hours before. She called their names through heavy sobs. No one answered.

An investigation is ongoing after an explosion on Tuesday at a fireworks warehouse facility in Esparto as families are demanding answers and closure.

SACRAMENTO, Calif. (AP) — Rescue crews were searching on Thursday for seven people still missing days after an explosion at a fireworks warehouse in Northern California shook a tiny farming community and forced the cancellation of nearby July Fourth celebrations.